tetramic-acid and propargylamine

Tetramic acid derivatives have been studied as biologically active heterocycle structures for pharmaceutical or agricultural chemicals. Conventional preparative approaches often require highly functionalized starting materials and harsh heating conditions in basic media. The present report provides a conceptually new synthetic strategy for the synthesis of tetramic acid derivatives from easily available propargylic amines and carbon dioxide with a silver salt and DBU under mild reaction conditions.

Topics: Carbon Dioxide; Catalysis; Molecular Structure; Pargyline; Propylamines; Pyrrolidinones; Silver; Stereoisomerism